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Gao H, Boustany RMN, Espinola JA, Cotman SL, Srinidhi L, Antonellis KA, Gillis T, Qin X, Liu S, Donahue LR, Bronson RT, Faust JR, Stout D, Haines JL, Lerner TJ, MacDonald ME. Mutations in a novel CLN6-encoded transmembrane protein cause variant neuronal ceroid lipofuscinosis in man and mouse. Am J Hum Genet 2002; 70:324-35. [PMID: 11791207 PMCID: PMC384912 DOI: 10.1086/338190] [Citation(s) in RCA: 142] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2001] [Accepted: 10/19/2001] [Indexed: 11/03/2022] Open
Abstract
The CLN6 gene that causes variant late-infantile neuronal ceroid lipofuscinosis (vLINCL), a recessively inherited neurodegenerative disease that features blindness, seizures, and cognitive decline, maps to 15q21-23. We have used multiallele markers spanning this approximately 4-Mb candidate interval to reveal a core haplotype, shared in Costa Rican families with vLINCL but not in a Venezuelan kindred, that highlighted a region likely to contain the CLN6 defect. Systematic comparison of genes from the minimal region uncovered a novel candidate, FLJ20561, that exhibited DNA sequence changes specific to the different disease chromosomes: a G-->T transversion in exon 3, introducing a stop codon on the Costa Rican haplotype, and a codon deletion in exon 5, eliminating a conserved tyrosine residue on the Venezuelan chromosome. Furthermore, sequencing of the murine homologue in the nclf mouse, which manifests recessive NCL-like disease, disclosed a third lesion-an extra base pair in exon 4, producing a frameshift truncation on the nclf chromosome. Thus, the novel approximately 36-kD CLN6-gene product augments an intriguing set of unrelated membrane-spanning proteins, whose deficiency causes NCL in mouse and man.
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Affiliation(s)
- Hanlin Gao
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Rose-Mary N. Boustany
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Janice A. Espinola
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Susan L. Cotman
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Lakshmi Srinidhi
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Kristen Auger Antonellis
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Tammy Gillis
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Xuebin Qin
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Shumei Liu
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Leah R. Donahue
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Roderick T. Bronson
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Jerry R. Faust
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Derek Stout
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Jonathan L. Haines
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Terry J. Lerner
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
| | - Marcy E. MacDonald
- Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown; Division of Pediatric Neurology, Duke University Medical Center, Durham, NC; Depratment of Physiology, Tufts University School of Medicine, Boston; The Jackson Laboratory, Bar Harbor, ME; and Program in Human Genetics, Vanderbilt University Medical Center, Nashville
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